the_task3.txt

Write a function that takes as arguments:
- a list of integers that represents a whole number
--> ex: [1, 2, 3 ,4] = 1234
--> ex: [8, 2] = 82
- a single-digit integer (-9 -> 9)

Return the sum of the whole-number version of the 
list of numbers, and that single-digit integer, as a list

add_us([1, 2, 3, 4], -9) --> [1, 2, 2, 5]
email: nicholas@codefellows.com

add_us([0, 0, 1, 1], 9) --> [0, 0, 2, 0]
add_us([9, 9], 1) --> [1, 0, 0]

***LAST MINUTE DECREE***: Incoming List has at Least 
                          Two Positive digits